Eusebius held moderate Arian views and, besides, was an Origenist. One must also take into account that he was the court historiographer of the emperor Constantine and wrote as befits a court historian. So, when reading Eusebius, one has to make allowance for all these characteristic features of the historian and, bearing them in mind, determine the degree of trust with which his works should be treated.
The section with the works of Eusebius of Caesarea in Greek: go. Switching to other languages is also available at the top, above the list of works.
Biography
Eusebius was born in Palestine and was educated in the schools of Jerusalem and Antioch. He studied the works of Plato and Philo of Alexandria; he was especially influenced by the teaching of Origen. He received the surname "Pamphili", or more precisely "of Pamphilus" (Εὐσέβιος ὁ Παμφíλου), because of his friendship with a certain presbyter Pamphilus, but later this surname came to be regarded as his own second name.
During the persecution of Diocletian he was one of the leaders of the catechetical school of Caesarea; he managed to save its library and even to enrich it with new manuscripts. When the disputes about the nature of Christ began, he supported Arius, for personal rather than theological reasons.
At the First Ecumenical Council he spoke, proposing the baptismal Creed as a conciliatory formula. This initiative was accepted, but the creed itself was supplemented with the term "consubstantial". Eusebius agreed to this "for the sake of the peace of the Church", but to the end of his days he inclined towards Semi-Arianism, interceding with the emperor Constantine on behalf of those who shared his views.
Despite his disputed dogmatic views, Eusebius of Caesarea is rightly considered the father of church history. His most famous work is devoted to the history of Christianity up to 324, drawing on both church and state archives. Adjoining it are the famous panegyric "The Life of Constantine" and small works on the history of the martyrs.
He also wrote theological works: "Preparation for the Gospel", "Demonstration of the Gospel", "Against Hierocles", "Prophetic Extracts concerning Christ", "Theophany", "Two Books Against Marcellus", "Three Books on Ecclesiastical Theology" and others.